Doesnt work with Schematron

The reason I bought this program was because I wanted to validate my XML documents against a Schematron file.
Unfortunately the program crashes instantly as soon as you try to parse a Schematron file, at least on my machine (MacBook Pro early 11 10.8)
Schema and DTD work as expected but Schematron doesnt work at all.

Sebastian_k about XML Nanny, v1.0.3